Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/49263
Title: OLEYLAMINE-BASED GENERAL SYNTHETIC APPROACH OF NANOCRYSTALS AND THEIR HETEROSTRUCTURES
Authors: LIU MINGHUI
Keywords: Nanocrystal, Oleylamine, I-III-VI semiconductor, heterostructure, dynamic seeded growth, superlattice
Issue Date: 6-Mar-2013
Source: LIU MINGHUI (2013-03-06). OLEYLAMINE-BASED GENERAL SYNTHETIC APPROACH OF NANOCRYSTALS AND THEIR HETEROSTRUCTURES. ScholarBank@NUS Repository.
Abstract: We first develop a generalized and facile strategy for the synthesis of Ag and Cu based I-(III)-VI semiconductor nanocrystals. Secondly, we develop a simple solution-based strategy to obtain highly monodisperse noble metal based heterostructured nanocrystals from such precursor seeds. By utilizing chemical and structural inhomogeneity of these metal seeds, in this work, we have synthesized a total of 5 I-VI (Ag2S, Ag2Se, Ag3AuS2, Ag3AuSe2 and Cu9S5), 3 II-VI (CdS, CdSe and CuSe) and 4 I-III-VI (AgInS2, AgInSe2, CuInS2 and CuInSe2) chalcogenides, together with their 15 associated heterodimers (Au-Ag2S, Au-Ag2Se, Au-Ag3AuS2, Au-Ag3AuSe2, Au-AgInS2, Au-AgInSe2, Au-CdS, Au-CdSe, Ag-Ag2S, Ag-AgInS2, Au-Cu9S5, Au-CuInS2, Au-CuSe, Au-CuInSe2 and Pt-AgInS2) to affirm the process generality. Finally, transition metal oxide and sulfide nanocrystals were used as a platform to demonstrate a one-step approach for synthesis and construction of self-assembled superlattices or supracrystals.
URI: http://scholarbank.nus.edu.sg/handle/10635/49263
Appears in Collections:Ph.D Theses (Open)

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